HTC's new Desire-range smartphones unveiled at the Mobile World Congress in Barcelona, and these new gadgets have Android Marshmallow (Android M) right out of the box. Now, HTC fans are asking when they would receive their Android M update.

Last week, HTC officials announced that One M9 users under the T-Mobile and Verizon networks are set to receive Android M upgrade. However, One M9 users under AT&T will have to wait a little longer as the mobile carrier reportedly encountered some technical issues, as per reports from Tech Times.

Additionally, HTC's product manager Leon Rosenzwaig announced via Twitter that the unlocked version of HTC A9 in Canada will receive the latest version of Android M.

For One M9 owners from other parts of the world, expect the update very soon. Canadian telecommunications companies Sasktel, Rogers, Videotron and Wind Mobile said they have started Android M roll out to their subscribers. Also, HTC One M8 & M9 TELUS users got the Android M update.

Because of these latest developments, many HTC followers believe that the Android M update will land on other HTC gadgets in the next couple of days.

It is also recommended that HTC phone users to check their devices if it is already available for update.

For tech enthusiasts who want to experience the cool features of Android M, HTC says their new Desire-range smartphones is available with Android 6.0 Marshmallow right out of the box. The HTC Desire 530, Desire 630, and Desire 825 smartphones are set to become available on retailers next month. The Taiwanese tech company launched the new Desire smartphones at Barcelona's Mobile World Congress.

Android Marshmallow is the latest operating system from Google. Majority of tech websites praised the system's innovative apps and improved security system. PC Advisor said the new firmware is packed with new features and performance tweaks that are very functional.